Tashkent Automobile and Road Construction Institute

The soil is a vital and valuable public resource that forms the foundation of a country's prosperity and supports its productivity. Its importance primarily derives from its essential role in agriculture, which is a key factor in a nation's economic growth and stability. In order to assess the effectiveness of corn as a protective crop in increasing resistance to soil erosion, a field experiment was conducted involving four treatment options for cotton crops. The first option served as a control, using the typical fertilizer rates found in local farming practices (N250 P150 K80), and growing cotton without any additional measures. The results depicted that Corn strips that were 20-25 meters wide were effective in shielding cotton crops from wind. The width of the cotton crop, however, varied from 130-135 meters, contingent upon the mechanical composition of the soil. Our observations suggested that the bulk of wind-borne dust (also known as “dust”) traveled at a height of 0-50 cm, which could enter the cotton plants and harm them.

In this paper bus travel time and delay is significant measures in public transportation. This research aims to explore impact of stops for the selected bus route and to find some simple suitable solutions to reduce the travel time and minimize delays for scheduling preferences of travellers. Delays data were collected using automatic vehicle location system (GPS technology) for the bus route #51 in Tashkent. Based on the collected GPS data were proposed the developed a linear and a logistic multivariate regression model. Travel time reliability were estimated regarding to a multivariate regression models and performed. The result shows that very good statistical suitable as expected and thus can be used in the public transportation to determine any travel time using real-time and available offline data. These outcomes, in the future it is expected that will be applicable and more efficient bus public transportation system in Tashkent.

The results influence of finale dispersed rubber crumb on the properties bitumen and asphalt concrete are presented in the study. The parameters of the optimal regime of bitumen and rubber crumb mixing are established. The influence on the rubber crumb mixing with bitumen or added directly in the process of asphalt concrete mixing on the properties of asphalt concrete is studied. The effects that fine rubber has on the properties of petroleum bitumen and asphalt concrete are measured. The best options available for combining bitumen and rubber crumb are given. Moreover, it is also described how and to what extend crumb can influence the quality of rubber-bitumen binder for roads and how rubber-bitumen binder is affected when crump is added to this asphalt mixture. The influence that rubber crumbs have on the quality of bitumen and asphalt concrete. In the study, the influence of crumb on the properties of bitumen and asphalt concrete are shown. The conditions at which a high-quality mixture of bitumen and rubber crumb can be produced. Furthermore, the effects of crumb on the rubber-bitumen binder and the direct introduction of crumb into mixture are thoroughly investigated.

Let mathcal M be a von Neumann algebra equipped with a faithful normal finite trace tau, and let Sleft( mathcalM, tauright) be an ast -algebra of all tau -measurable operators affiliated with mathcal M . For x in Sleft( mathcalM, tauright) the generalized singular value function mu(x):trightarrow mu(tx), t0, is defined by the equality mu(tx)infxp_mathcalM:, p2pp in mathcalM, , tau(mathbf1-p)leq t. Let psi be an increasing concave continuous function on 0, infty) with psi(0) 0, psi(infty)infty, and let Lambda_psi(mathcal M,tau) left x in Sleft( mathcalM, tauright): x _psi int_0inftymu(tx)dpsi(t) infty right be the non-commutative Lorentz space. A surjective (not necessarily linear) mapping V:, Lambda_psi(mathcal M,tau) to Lambda_psi(mathcal M,tau) is called a surjective 2-local isometry, if for any x, y in Lambda_psi(mathcal M,tau) there exists a surjective linear isometry V_x, y:, Lambda_psi(mathcal M,tau) to Lambda_psi(mathcal M,tau) such that V(x) V_x, y(x) and V(y) V_x, y(y). It is proved that in the case when mathcalM is a factor, every surjective 2-local isometry V:Lambda_psi(mathcal M,tau) to Lambda_psi(mathcal M,tau) is a linear isometry.

X-ray photoelectron spectroscopy a technique was used in order to characterize, ionic state of Fe and chemical composition of Fe doped TiO 2 .XPS detected Iron in form of Fe 2+ and Fe 3+ .Surface atomic concentrations were measured.Light exposed and reference samples were compared.Light irradiation affected charge transfer on the surface of Iron doped TiO 2 .After light exposing XPS measurements showed that Ti 4+ peak intensity decreased and shifted positively, O1s spectrum showed presence of increased amount of OH radicals, valence band spectra intensity increased.

The higher manganese silicide (HMS) films were grown in a high-vacuum reactor temperature as a result of interaction of Mn vapour with Si-substrate subsurface layer at the substrate temperature ~ 1040degC. The films have been investigated by electron diffraction and transmission electron microscopy. It was shown that the higher manganese silicide grains were formed at the substrate surface and they grew in lower direction from initial substrate. After 2 mum in lower direction from the films surface the polycrystalline interlayer with thickness of 100-150 nm and cubic lattice (a=4,36Aring) was formed. At the interface between Si (111) single crystal and the HMS films thin amorphous layer was observed

Objective: The aim of this study was to investigate the association between intraocular pressure and metabolic syndrome by comparing central corneal thicknesses.Methods: One hundred sixty-two subjects were enrolled in this cross-sectional study, with 89 subjects in a metabolic syndrome group and 73 subjects in a control group. Ophthalmological examinations, including intraocular pressure and central corneal thickness measurements, were performed on each subject. Serum fasting glucose, triglyceride and HDL cholesterol levels were measured, and waist circumference, systolic and diastolic blood pressure of all patients were recorded.Results: Participants with metabolic syndrome had a significantly higher intraocular pressure than those without metabolic syndrome (p = 0.008), and there was no statistically significant difference between the central corneal thicknesses of the two groups (p = 0.553). Most of the metabolic syndrome components were associated with higher intraocular pressure (p < 0.05).Conclusions: There is a relationship between metabolic syndrome and intraocular pressure, but no association between metabolic syndrome and central corneal thicknesses. Intraocular pressure is affected by central corneal thicknesses, and intraocular pressure is used to correct according to the central corneal thicknesses measurement. To our knowledge, this is the first study that determines the positive relationship between metabolic syndrome and intraocular pressure by comparing the central corneal thicknesses of the groups.